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PDF PD69012 Data sheet ( Hoja de datos )
| Número de pieza | PD69012 | |
| Descripción | 12 Ports Power Over Ethernet Manager | |
| Fabricantes | Microsemi | |
| Logotipo |  |
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PD69012 - 12 Ports Power Over Ethernet Manager
Description _________________
Microsemi’s PD69012 Power over Ethernet (PoE)
Manager chip integrates power, analog and state of
the art embedded core logic into a single 80-pin,
plastic QFP package. The device is used in Ethernet
switches and Midspans to enable network devices to
share power and data over the same cable.
PD69012 device is a 12-port, mixed-signal, high-
voltage Power over Ethernet driver. It enables
detection of IEEE802.3af-2003 compliant PDs
(Powered Devices) and IEEE802.3AT High Power
Devices, thus, ensuring safe power feeding and
disconnection of ports. With full digital control via a
serial communication interface and a minimum of
external components, the device integrates into multi-
port and highly populated Ethernet switches and
routers.
The PD69012 executes all real time functions as
specified in the IEEE802.3af-2003 (“AF”) standard
and IEEE802.3at High Power (“AT”) functionality,
including load detection, “AF” and “AT” classification
and port status monitoring. In addition it performs
system level activities such as: power management
and MIB support for system management. The PoE
device is designed to detect and disable
disconnected ports utilizing both DC and AC
disconnection methods, as specified in the
IEEE 802.3af-2003 standard.
The PD69012 is designed to support 2 main
configurations:
• Auto mode: For Basic ”AF” and “AT” PSE
equipment
• Enhanced mode: For High End, Extended
features set of AF and AT PSE equipment
Pin Configuration _____________
Vport_pos0
Vport_pos1
Vport_pos2
Vport_pos3
Vport_pos4
Vport_pos5
Vport_pos6
Vport_pos7
Vport_pos8
Vport_pos9
Vport_pos10
Vport_pos11
CP_OUT
CP_IN
Vmain
Ref_port_neg
Dgnd2
PowerGood0/GPIO0
PowerGood1/GPIO1
PowerGood2/GPIO4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
LSC
LSD
CS_EEPROM_n/ LSL /
Interrupt_n
Ext_reg
ADC2p5
QGND
I2CINI
Vcc2p5
ASIC_INI
Iref
Reset_n
SDA
PD69012SDA_out
SCL
SCK
Date Code
Disable_ports_n
60 LSC/ GPIO3
59 LSD/ GPIO2
58 CS_EEPROM_n/ LSL /
Interrupt_n
57 Vperi
56 Ext_reg
55 ADC2p5
54 Qgnd
53 I2CINI
52 Vcc2p5
51 ASIC_INI
50 Iref
49 Reset_n
48 SDA
47 SDA_out / Test_mode
46 SCL
45 SCK
44 MOSI
43 MISO
42 CS_n
41 Disable_ports_n
Supported Features __________
PD69012 Auto Mode Features:
♦ Fully IEEE802.3af-2003 compliant
♦ Designed to support IEEE802.3at including two-event
classification
♦ Supports Pre-standard PD detection
♦ Supports Cisco devices detection
♦ IETF Power Ethernet MIB (RFC 3621) compliant
♦ Single DC voltage input (44v-57v)
♦ Wide temperature range: -40° C to +85° C
♦ Low thermal dissipation (0.5Ω sense resistor)
♦ Drives 12 independent 2-pairs power ports or 6
independent 4-pairs ports
♦ Can cascade up to 8 PoE devices (96 ports)
♦ EEPROM interface for software patching and
parameter configuration
♦ I2C Host interface
♦ Supports Interrupt out pin
♦ Dynamic Power management
♦ Emergency power management supporting 3
Configurable Power Bank I/Os
♦ Direct register communication
♦ Direct LED drive
♦ Continuous monitoring per port and system data
♦ Parameter setting per port and per system
♦ Power soft start algorithm
♦ Thermal monitoring/protection
♦ Voltage monitoring/protection
♦ H/W disable ports input
♦ Built in 3.3 V regulator
♦ Internal power on reset
♦ Enhanced SPI bus for internal communication
♦ External EEPROM for system parameters update
♦ SW ROM patch option
♦ RoHS compliant
Enhanced Modes Additional Features:
♦ I2C or UART host interface
♦ Serial Communication Protocol backwards compatible
with PD63000 and PDIC66000
♦ Additional monitoring
♦ Extended parameter setting
♦ Port matrix for flexible PCB layout
♦ Field upgradeable software
♦ Emergency Power Management with 4 power
supplies
Ordering Information __________
Part number Temperature range Package
PART
TEMP. RANGE
PIN PACKAGE
PD69012
-40 to +85 °C
LQFP 80 pin
This datasheet refers to ICs with date code "XAA0843" or later.
Date code: See the bottom line (XAA0843) in the Pin Configuration
drawing. Where “0843" is the date code, “08” is the year (2008),
and “43” is the week.
Copyright © 2009
Rev. 1.0, 2009-03-03
Microsemi
Analog Mixed Signal Group
2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308
page 1
1 page  
PD69012 - 12 Ports Power Over Ethernet Manager
Electrical Characteristics _________________________________________
PIN NAME:
PAD TYPE:
PARAMETER
High Level Input Voltage
Low Level Input Voltage
Input Voltage Hysteresis
Input High Current
Input Low Current
• SCL
• DISABLE_PORTS_N
Schmitt Trigger CMOS input, TTL Level with no internal Res.
SYMBOL MIN
TYP
MAX
UNIT
VIH 2.0
V
VIL 0.8 V
0.3 V
IIH -1
1 μA
IIL -1
1 μA
NOTE
PIN NAME:
PAD TYPE:
PARAMETER
• LSD Multiplexed with GPIO_2
• LSC Multiplexed with GPIO_3
• POWER_GOOD0 Multiplexed with GPIO_0
• POWER_GOOD1 Multiplexed with GPIO_1
• POWER_GOOD2 Multiplexed with GPIO_4
CMOS I/O, TTL Level with no internal pull up / pull down resistor, with Schmitt trigger
Input
SYMBOL MIN
TYP
MAX
UNIT
NOTE
High Level Input Voltage VIH 2.0
Low Level Input Voltage
VIL
Input Voltage Hysteresis
0.3
V
0.8 V
V
Input High Current
IIH -1
Input Low Current
IIL -1
High Level Output Voltage
VPERI-
0.4 V
+1 μA
+1 μA
V Iout = -2 mA
Low Level Output Voltage
0.4 V Iout = 2 mA
Copyright © 2009
Rev. 1.0, 2009-03-03
Microsemi
Analog Mixed Signal Group
2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308
Page 5
5 Page 
PD69012 - 12 Ports Power Over Ethernet Manager
AT PORTS PARAMETERS
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Automatic recovery from
overload shutdown
TOVLREC value, measured from port shutdown
(can be modified through control port)
5s
Automatic recovery from no-load TUDLREC value, measured from port shutdown
shutdown
(can be modified through control port)
1s
Cutoff timers accuracy
Typical accuracy of Tcut
4 2 0 ms
Inrush current
Output current operating range
IInrsh
Iport
For t=50 ms, Cload=180 uF max.
Continuous operation after startup period.
400
10
450 mA
643 mA
Output power available,
operating range
Pport
Continuous operation after startup period,
at port output.
0.57
36 W
Off mode current
Imin1 Must disconnect for t greater than TUVL
0
5 mA
Imin2 May or may not disconnect for t greater
than TUVL
5 7.5 10 mA
PD power maintenance request
drop-out time limit
TPMDO
Buffer period to handle transitions
300
400 ms
Over load current detection range Icut
Time limited to TOVL
686 728 771 mA
Over load time limit
TOVL
50 75 ms
Turn on rise time
Trise From 10% to 90% of Vport
(Specified for PD load consisting of 100 uF capacitor
15
in parallel to 200 Ω).
us
Turn off time
Toff From Vport to 2.8 Vdc
500 ms
Time Maintain Power Signature TMPS DC modulation time for dc disconnect
49 ms
AC disconnect impedance
Zac
27 600 2000 KΩ
Copyright © 2009
Rev. 1.0, 2009-03-03
Microsemi
Analog Mixed Signal Group
2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): (800) 713-4113, (ROW): (949) 221-7100 Fax: (949) 756-0308
Page 11
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet PD69012.PDF ] | |
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